天津市滨海新区自来水输水系统优化  

Optimization of Water Distribution System in Tianjin Binhai New Area

作　　者：彭晨蕊[1,2] 高斌[2] 孙欣[3] 庄宝玉[1] 赵新华[1] 

机构地区：[1]天津大学环境科学与工程学院,天津300072 [2]天津市城市规划设计研究院,天津300201 [3]中国市政工程华北设计研究总院,天津300074

出　　处：《中国给水排水》2011年第17期55-58,共4页China Water & Wastewater

摘　　要：以管线经济计算长度为权值,建立基于城市路网图的最短路径问题模型,采用基于广度优先搜索策略的Dijkstra算法进行跨区输水干管定线优化。以管网年费用最小为目标函数,引入拉格朗日条件极值理论,得到经济管径计算公式。利用该公式计算各种规格管径的界限流量,并据此确定了各水厂的出厂干管管径。Using economic calculation length of pipe as weight, a shortest path model was established based on urban road network. Dijkstra algorithm based on breadth-first search strategy was used to optimize the path of main line spanning different areas. Taking minimum annual charge of water supply network as objective function, the calculation formula of economic pipe diameter was obtained using Lagrange conditional extremum theory. The boundary flow of different pipe diameters is calculated using this formula, and according to this, the diameters of main lines from water treatment plants are determined.

关 键 词：输水系统 优化 最短路径 DIJKSTRA算法 经济管径 界限流量 

分 类 号：TU991.33[建筑科学—市政工程]